The performance of Array::concat is critical of jQuery benchmark from
http://www.dromaeo.com. Our current implementation in JavaScript is very
generic and is several times slower than JSC and SpiderMonkey.

Re-implement Array::concat in C++ to take advantage of underlying implementation
details. This cuts dom-travesal-jquery execution time by half.

We may want to move Array specific implementation into a separate source file,
say jsarray.cc.

Review URL: http://codereview.chromium.org/7990

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

field is always initialized to a Smi before we get any GCs.

Review URL: http://codereview.chromium.org/8833

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@624 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

lenght optimization.  Here is the fix: check that the instance type
not the receiver is JS_VALUE_TYPE.

Review URL: http://codereview.chromium.org/8656

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8655

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@621 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8829

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@617 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

in a few places.
Review URL: http://codereview.chromium.org/8828

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test regressions.

Review URL: http://codereview.chromium.org/8827

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@615 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7979

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Review URL: http://codereview.chromium.org/8622

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with surprising results.
Review URL: http://codereview.chromium.org/8619

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Review URL: http://codereview.chromium.org/8620

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@608 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

IC stubs for calls just before invoking the target
function instead of doing it before resolving the
function.
Review URL: http://codereview.chromium.org/8192

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@607 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8193

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@606 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8190

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operation.  I have another version of this change that does not remove the
special inline caches for difference sized strings.  The other version is ever
so slightly faster, but the nice thing about this version is that it removes
253 lines of code.
Review URL: http://codereview.chromium.org/8187

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@603 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

linkage bug.

Review URL: http://codereview.chromium.org/8189

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@602 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

If a map has descendents in the map transition tree that are alive,
it is kept.  Only maps such that they and all their descendants
have no live objects are collected.  This happens in mark-sweep and
mark-compact garbage collections.
Review URL: http://codereview.chromium.org/8099

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@601 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8617

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@600 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7984

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

sillinesses found while trying to get rid of medium-sized strings.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@595 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

remove unused strcasecmp on windows, it conflicts with the one from webkit, check in on behave of dglazkov@chromium.org

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@594 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

that the exception stored in the TryCatch is not cleared as that was the
cause of the regression.

So the actual difference to http://codereview.chromium.org/8101 is:
Index: src/top.h
===================================================================
--- src/top.h   (revision 576)
+++ src/top.h   (working copy)
@@ -154,10 +154,6 @@
     if (has_pending_exception()) {
       thread_local_.external_caught_exception_ =
           thread_local_.pending_external_caught_exception_;
-    } else {
-      if (thread_local_.try_catch_handler_ != NULL) {
-        thread_local_.try_catch_handler_->Reset();
-      }
     }
     thread_local_.pending_external_caught_exception_ = false;
   }
@@ -312,14 +308,14 @@
 };



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where the receiver needs to be patched with the proxy
and get ready of unnecessary function patching on ARM.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@591 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

use safe casting operations to slot access on contexts when
possible.


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to instead take no arguments and return the undefined value.


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version range for which the bug is known to exist.

Added include to compile with GCC 4.3.1.

BUG=122


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@583 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Changed the structure of regexp objects from having two internal
  fields to having a single field containing a fixed array, since it's
  easier to store the whole fixed array in the cache.
- Move printing of the command to after printing std{err,out} in the
  compact progress indicators in the test framework.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@579 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8144

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@578 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=kasperl
Review URL: http://codereview.chromium.org/7970

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@577 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Changed the catcher_ field to a boolean value and renamed it. Modified the
propagation of the external caught exception to also clear the current
TryCatch if there is no exception as it might hold an exception which has
been bypassed by code in a finally block.

Minor formatting changes to a test.
Review URL: http://codereview.chromium.org/8102

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7925

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7917

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Eliminated a few write barriers.

Review URL: http://codereview.chromium.org/8103

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

towards version 0.4.1.
Review URL: http://codereview.chromium.org/8100

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@571 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

execution. This is achieved by storing a pointer to the C++ TryCatch when the
exception is thrown and checking that this is the handler active when leaving
JavaScript.
Review URL: http://codereview.chromium.org/8101

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the enumerable properties of an object.


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